The MK 17 is the second part of the FN SCAR family of weapons. Controllability is a hallmark of the MK 17, firing controlled pairs easily even in full-auto mode. Like the MK 16, the MK 17 remains a completely ambidextrous rifle design with multiple integral MIL-STD 1913 mounting rails and a telescoping, folding buttstock with adjustable cheekpiece.